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Dive into the research topics where Wei Yizhen is active.

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Featured researches published by Wei Yizhen.


international conference on optical communications and networks | 2016

Widely tunable ultrashort soliton source with enhanced SSFS

Lou Yang; Wei Yizhen

A tunable ultrashort soliton source is designed by cascading a thulium-doped Fiber (TDF) to the rear of a large mode area (LMA) fiber and the shift of wavelength per power is 6.4nm/mW from 2000nm to 2200nm. The usage of TDF introduces an extra soliton self-frequency shift (SSFS) about 150nm at each pump power level. By filtering the residual pump of 1550nm, it is demonstrated that the presence of residual pump pulse further propels the soliton to longer wavelength and the absorption of TDF does not play a part in SSFS. Other factors including the increase of Raman effect, birefringence in polarization maintaining fiber are relevant but not significant.


Microwave and Optical Technology Letters | 2014

All‐fiber laser generating at 3.8 μm pumped by 1565 nm fiber laser and the second‐order laser at 1.9 μm

Wang Tianshu; Wei Yizhen; Hu Kai; Zhang Peng; Jia Qingsong; Jiang Huilin


Archive | 2015

Be used for abluent laser cleaning head of pipe inner wall

Zhang Zhuopeng; Yang Guowei; Wei Yizhen


Archive | 2015

PM2.5 concentration monitoring device based on CCD back scattering

Hu Miao; Wu Duanfa; Xie Jialiang; Deng Jing; Li Qiliang; Zhou Xuefang; Wei Yizhen; Lu Yang; Qian Zhengfeng


Archive | 2014

All-optical logic device based on asymmetric coupler cross phase modulation

Li Qiliang; Yuan Hongliang; Hu Miao; Tang Xianghong; Zeng Ran; Wei Yizhen; Zhou Xuefang; Lu Yang; Qian Zhengfeng


Archive | 2015

Laser cleaning equipment based on fiber laser unit

Zhang Zhuopeng; Yang Guowei; Wei Yizhen


Archive | 2015

Node grouping and optimization method facing passive optical network planning

Qi Yongmin; Hu Xiaoqin; Wei Yizhen; Qian Sheng; Hu Miao; Zhou Xuefang; Li Qiliang


Archive | 2014

2-micrometer active mode-locking optical fiber laser based on polarization controller

Li Qiliang; Zhu Mengyun; Zhang Zhen; Li Dongqiang; Hu Miao; Tang Xianghong; Zeng Ran; Wei Yizhen; Zhou Xuefang; Lu Yang; Qian Zhengfeng


Archive | 2015

Mixed transmission system of light sum microwave towards spatial information network

Yang Guowei; Bi Meihua; Wei Yizhen; Lu Yang; Zhou Xuefang; Li Qiliang; Hu Miao


Archive | 2014

Sagnac ring full-optical logic device based on electro-optical modulation

Li Qiliang; Zhu Mengyun; Zhang Zhen; Li Dongqiang; Hu Miao; Tang Xianghong; Zeng Ran; Wei Yizhen; Zhou Xuefang; Lu Yang; Qian Zhengfeng

Collaboration


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Zhou Xuefang

Hangzhou Dianzi University

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Li Qiliang

Hangzhou Dianzi University

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Tang Xianghong

Hangzhou Dianzi University

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Qian Sheng

Hangzhou Dianzi University

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Wang Tianshu

Changchun University of Science and Technology

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Hu Kai

Zhejiang University

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Jia Qingsong

Changchun University of Science and Technology

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Jiang Huilin

Changchun University of Science and Technology

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